Cita APA

Grob, G. N. 1., & Billias, G. A. 1. (1982). Interpretations of American history (4. edition.). New York: The Free Press.

Citación estilo Chicago

Grob, Gerald N. 1931-2015, y George Athan 1919-2018 Billias. Interpretations of American History. 4. edition. New York: The Free Press, 1982.

Cita MLA

Grob, Gerald N. 1931-2015, y George Athan 1919-2018 Billias. Interpretations of American History. 4. edition. New York: The Free Press, 1982.